Question

我是创建FB应用程序的新手，我从facebook上获取了这个上传图片代码来帮助我。它通过浏览器工作正常，但我不知道如何从命令行运行它而不会出错。有人可以帮我修改一下吗？看起来它无法登录Facebook。我已经查看了SO上的类似帖子，我理解访问令牌存在一些问题，但我一直对如何将检索访问令牌合并到以下代码中感到困惑：

 <?php
// Remember to copy files from the SDK's src/ directory to a
// directory in your application on the server, such as php-sdk/
require ('./facebook_php_sdk/facebook.php');

$config = array(
'appId' => 'MYAPPID',
'secret' => 'MYSECRET',
'fileUpload' => true,
'allowSignedRequest' => false // optional but should be set to false for non-canvas apps
);

$facebook = new Facebook($config);
$user_id = $facebook->getUser();

$photo = './myimage.jpg'; // Path to the photo on the local filesystem
$message = 'My image message';
?>
<html>
<head></head>
<body>

<?php
if($user_id) {

  // We have a user ID, so probably a logged in user.
  // If not, we'll get an exception, which we handle below.
  try {

    // Upload to a user's profile. The photo will be in the
    // first album in the profile. You can also upload to
    // a specific album by using /ALBUM_ID as the path
    $ret_obj = $facebook->api('/me/photos', 'POST', array(
                                     'source' => '@' . $photo,
                                     'message' => $message,
                                     )
                                  );
    echo '<pre>Photo ID: ' . $ret_obj['id'] . '</pre>';
    echo '<br /><a href="' . $facebook->getLogoutUrl() . '">logout</a>';
  } catch(FacebookApiException $e) {
    // If the user is logged out, you can have a
    // user ID even though the access token is invalid.
    // In this case, we'll get an exception, so we'll
    // just ask the user to login again here.
    $login_url = $facebook->getLoginUrl( array(
                   'scope' => 'photo_upload'
                   ));
    echo 'Please <a href="' . $login_url . '">login.</a>';
    error_log($e->getType());
    error_log($e->getMessage());
  }
} else {

  // No user, print a link for the user to login
  // To upload a photo to a user's wall, we need photo_upload  permission
  // We'll use the current URL as the redirect_uri, so we don't
  // need to specify it here.
  $login_url = $facebook->getLoginUrl( array( 'scope' => 'photo_upload') );
  echo 'Please <a href="' . $login_url . '">login.</a>';

}

?>

</body>
 </html>

编辑：从命令行收到错误消息：

 <b>Warning</b>:  session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cookie - headers already sent in <b>/home/user/public_html/site/modules/facebook_php_sdk/facebook.php</b> on line <b>59</b><br />
 <br />
 <b>Warning</b>:  session_start() [<a href='function.session-start'>function.session-start</a>]: Cannot send session cache limiter - headers already sent (output started at /home/user/public_html/site/modules/facebook_php_sdk/facebook.php:59) in <b>/home/user/public_html/site/modules/facebook_php_sdk/facebook.php</b> on line <b>59</b><br />
 <html>
 <head></head>
 <body>

 Please <a href="https://www.facebook.com/dialog/oauth?client_id=524495667649391&redirect_uri=http%3A%2F%2F&state=804a8eebae4c3807118eeb7cac2b9f6f&sdk=php-sdk-3.2.3&scope=photo_upload">login.</a>

facebook从命令行发布到墙上

0 个答案: